Michelle Obama slammed Donald Trump on Friday over his previous
questions about President Barack Obama's birthplace.

In a speech at George Mason University, the first lady criticized
the Republican presidential nominee's assertions that her husband
was not born in the US, despite evidence to the contrary.

"Then, of course, there were those who questioned, and who
continue to question for the past eight years, and up to this
very day, whether my husband was even born in this country,"
Obama said, alluding to Trump's questions. "Well, during his time
in office, I think Barack has answered those questions with the
examples he set, by going high when they go low. And he's
answered these questions with the progress we've achieved
together."

Obama's comments came several hours after Trump announced that after years of publicly
questioning Obama's birthplace, he now believes Obama was born in
the US.

During Friday's speech, the first lady laid into Trump's
temperament, calling the real-estate magnate "erratic" and
"threatening," and telling the audience that "a president can't
just pop off."

The first lady lauded Hillary Clinton, arguing that she is one of
the most qualified people to ever seek the presidency, but also
acknowledged that many voters feel pessimistic about the way the
election has played out in the media.

"As you are working your heart out for Hillary, if you start to
feel tired or discouraged by all the negativity in this election.
If you want to hide under the bed until it's all over, I want you
to remember what's at stake," Obama said, rattling off numerous
Obama administration positions that Trump has promised to roll
back.

She also attempted to counter Trump's vision of a worsening
America, echoing her comments at the Democratic National
Convention in Philadelphia in which she touted herself and her
husband as examples of American economic opportunity.

"We live in a country where a girl like me from the South Side of
Chicago whose great-great-grandfather was a slave could go to
some of the finest universities on earth. We live in a country
where a biracial kid from Hawaii named Barack Obama, the son of a
single mother, can become president," Obama said, citing the
ability for immigrants to come to the US and achieve economic
success.